Ventilator



W. W. MOREY. VENTILATOR.

APPLICATION F |LED,AUG.27| 1920.

1 417 194 Patented May 23, 1922.

IN VEN TOR.

BY W /MTTORNEYJ rarest orrics.

WORTHIE W. MDBEY, OF COLUMBUS, OHIO.

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Specification of Letters Patent.

Patented May 23, 1922.

Application filed August 27, 1920. Serial No. 406,341.

To all whom it may concern:

me it known that I, VVORTHH} W. MOREY, a citizen. of the United States, residing at 863 ltlouth High Street Columbus in the county of Franklin and State ofOhio, have invented certain new and useful improve ments in Ventilators, of which the following is a specification, reference being had therein to the accompanying drawings.

in the patent previouslygranted to me and inimbered154:8,513, thereis disclosed a ventilator of the general nature of that forming the subject matter of the present invention. That is the patent referred to discloses a wind. operated propeller which in turn actuates a centrifugal fan by which the foul air or gases are discharged radially into a surrounding element from which they pass to the atmosphere.

It is an object of the present invention to so construct the surrounding element that the momentum of the foul air and gases will aid in carrying them free of the surrounding element with the additional fea-- ture, not found in the patent aforesaid, that the air and gases are permitted to pass out of the top as well as out of the bottom of said surrounding element. By virtue of this arrangement the known tendency of heated air and gases to rise is taken ad vantage of, while at the same time increased capacity for any given sized ventilator is secured.

It is a further objectof the invention to provide an improved bearing for the rotative element or elements of the ventilator, said bearing being so constructed that it may be very economically manufactured; may be readily replaced and will be self cleaning.

The several elements by virtue of which the foregoing objects are achieved are of course, so combined and correlated asto effectually prevent the entrance of wind, rain, snow or the like to the space that is being ventilated.

Further objects and advantages of the invention will be set forth in the detailed description which follows.

In the accompanying drawing: r Fig. 1 is a vertical sectional view of ventilator constructed. in accordance with the invention Fig. 2 is an enlarged vertical sectional view of abearing hereinafter described;

weatherhood shown in said patent.

Fi ments Fig. 4: is an underside plan view of another of the elements of said bearing.

Like numerals designate corresponding parts in all of the figures of the drawing.

Referring to t-ll drawing 5 designates a tubular stem or pipe the lower portion of which is adapted to pass through a roof and to establish communication between a space to be ventilated and the atmosphere.

The stem 5 carries a spider 6 said spider being centrally provided at 7 with a support for bearing elements hereinafter described which receive and support the lower end of a spindle 9. This spindle may. if desired, be provided with an axially acting tan 9. The spindle carries a centrifugal fan '10 which may be of any desired construction but is here shown as of inverted cup formation with blades 11 about its periphery. By an axially acting fan is meant a fan which dischargesa blast in the direc tion of the axis about which the fan rotates. The spindle 8 also carries a propeller 12 here shown as of the same nature as that shown in my. patent aforesaid. In other words this propeller consists of a plurality of hollow hemispheres 13 adapted tobe driven by the wind in a usual and well known way. The upper end of the spindle 8 is provided with a ball like element 14 adapted to have a seating in an elongated recess 15 of a glass bearing element 16. The bearing element 16 is re ceived in a cup like member 17 and held from falling out of said member by screws 18.

The structure so fardescribed is substantially the same as that shown in my patent 9 aforesaid and it is to be understood that I reserve unto myself all of the features of advantage inherent in bothof these structures whether specifically recited herein or not. The present'structure differs from the structure shown in the patent aforesaid, among other things in that a storm band 19 is employed in lieu of the hemispherical The storm band is so shaped that its upper and lower edges are inwardly directed as illus trated at 19 and 19 The storm band is supported from the stem 5 by means of a plurality of brackets 20 and this storm band in turn supports a conical hood 21 through the medium of a plurality of spaced brackets 22. I have illustrated this conical hood as comprising a top 21 and a bottom 21 but perbearing support 171s carried by a yoke 25 the lower ends of which are secured to the storm band 19 and 26.

The operation of the device,-so far as de scribed, is as follows; when the apparatus is to be used for drawing foul air or gases from a space to be ventilated rotation of the centrifugal fan in the proper direction under the influence of the wind operated propeller will cause the air within the centrifugal fan to be discharged radially outwardly and into the storm band. This action may be assisted by the fan 9 and the result will be to draw air upwardly through the stem 5 from the space to be ventilated to replace the air that has been discharged by the fan and it is manifest that if this action is continued a steady current will be set up through the stem 5. The air discharged laterally into the storm band and also any smoke or gases which pass upwardly through the stem 5 may escape from the interior of the storm band in the direction indicated by the arrows a or in the direction indicated by the arrows Z). In other words the ejected air and gases may pass out of the top of the storm band between the outer edge of the conical hood and the adjacent portion of the storm band and may also pass out of the bottom-of the storm band between the lower the action of the centrifugal fan. It will further be observed that the lower edge of the storm band is below the top of the stem 5 and in addition tlns stem carries an outwardly and downwardly directed apron 27 1 which tends to check the upward flow of any gusts of wind to the interior of the ventilator.

of parts adapted to be contained within the bearing holder 7. One of these parts consists of a block 28 having a rounded upper face 2'8 which supports a ball like member 29 upon the lower end of the spindle 8. This spindle is preferably formed of noncorrosive or nonrusting metal. The block 28 may be made of some noncorrosive or nonrusting metal but it is preferably made of glass. The same'is true of a collar 30 having a vertical opening formed therethrough which receives the ball 29. The collar 30 is held against vertical movement and displacement from the holder 7 by screws 31 which pass through the sides of the holder and overlie the collar. A support 32 is disposed between the collar 30 and the block 28 and this support has a fiatupper faceadapted to support the collar and an arcuate lower face adapted to fit upon the curved upper face of the block 28. The lower face of the support 32 is provided with a plurality of channels 32 leaving bearing portions 32 between them. The bearing portions 32 are the portions that rest upon the block 28. The result of this construction is to provide channels 32" which communicate with openings 7 formed in the holder 7 and through which dirt and dust may find its way from the bearing to render the bear.- ing self-cleaning. This is particularly advantageous where the ventilator is being used upon foundries or like buildings where large amounts of dust and dirt are carried up with the air andgases to be ejected. Fur

thermore where considerable smoke is to be handled much soot is likely to find its way to the hearing. The present invention provides a bearing which will effectively take care of the collection of dirt, soot, dust and;

the like and discharge it through the openings described, leaving the bearing always in condition for effective operation.

It will be observed thatthe upper and lower edges of the storm band are, a's'before stated, inwardly directed. This results in disposing these surfaces in such direction as to cause them to act as deflectors, deflecting some of the air and gases upwardly and deflecting the remainder dowi'iwardly and this without setting up objectionable eddy currents. This is highly advantageous when large quantities of hot smoke must be handled quickly, as when the ventilator is used upon foundries and the like. The positive ejection of a pa-rt'of the smoke upwardly through the top of the storm band and the positive ejection of the remainder downwardly through the storm band increases the capacity of the ventilator as will be readily understood.

While the ventilator forming the subject matter of the present inventionis primarily intended to operate in the manner set forth it is manifest that it may equally as well be used to force air downwardly through the Cir stem 5 instead of drawing air therefrom, it being only necessary to set the hemispheres in the manner suggested in my patent afore said in order to cause the stem 8 to rotate in the proper direction.

The arrangement described provides a ventilator that is extremely sensitive in action; is operable by very light currents of air is thoroughly weatherproof and may be used upon cars or other moving vehicles, boats and the like.

It is to be understood that the inventionis not limited to the precise construction set forth but that it includes within its purview whatever changes fairly come within either the terms or the spirit of the appended claims.

Having described my invention, What I claim is: v

1. The combination with a stem, a centrifugal fan thereabove, means for rotating the fan, a hood above said fan and a storm band surrounding the fan the upper portion of said storm band being spaced from the outer edge of the hood and the lower portion of said storm band being spaced from said stem to thereby permit thepassage of ejected fluid upwardly between the hood and the storm band and downwardly between the storm band and stem, said storm band having its upper and lower edges inwardly directed and extending to points above the hood and below the stem respectively.

2. A structure as recited in claim 1 in combination with an axially acting fan dis- 1 posed in said stem.

3. A structure as recited in claim 1 in combination with a wind operated propeller for actuating the fan, said propeller being located above said hood.

4- A device of the character described comprising a stem, a bearing sup-ported therefrom, a spindle mounted to turn upon said bearing, a centrifugal fan carried by the spindle, a storm band surrounding the 4;

signature.

WORTHIE W. MOREY. 

